1999 - Larry Sinclair-Obama smoked Crack Cocaine as I performed felatio on him.

The Choom Gang was Obama's pot smoking gang in high school

By his own admission, President Barack Obama was a frequent user of marijuana in his youth and cocaine when he could afford it. Obama admitted to illegal drug use in a memoir published prior to his entry to politics so his frankness it not necessarily due to his character and honesty as a politician. More likely than not candidate Obama would have never volunteered any information about past drug use. But because it was established record, Obama openly discussed his drug use.